Rectangles- Properties

Front

What is a rectangle?

Back

A rectangle is a quadrilateral with four right angles and opposite sides that are equal in length.

Front

What are the properties of a rectangle?

Back

1. Opposite sides are equal in length. 2. All angles are right angles (90 degrees). 3. The diagonals are congruent (equal in length). 4. The diagonals bisect each other.

Front

How do you calculate the perimeter of a rectangle?

Back

Perimeter = 2(length + width).

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

What is the relationship between the diagonals of a rectangle?

Back

The diagonals of a rectangle are congruent and bisect each other.

Front

If the length of a rectangle is 10 cm and the width is 5 cm, what is the area?

Back

Area = 10 cm × 5 cm = 50 cm².

Front

If the perimeter of a rectangle is 30 cm and the length is 10 cm, what is the width?

Back

Perimeter = 2(length + width) => 30 = 2(10 + width) => width = 5 cm.

Front

What is the measure of each angle in a rectangle?

Back

Each angle in a rectangle measures 90 degrees.

Front

If one side of a rectangle is 4 cm and the other side is 3 cm, what is the perimeter?

Back

Perimeter = 2(4 cm + 3 cm) = 14 cm.

Front

What is the length of the diagonal of a rectangle with length 6 cm and width 8 cm?

Back

Diagonal = √(length² + width²) = √(6² + 8²) = √(36 + 64) = √100 = 10 cm.